$(document).ajaxSend(function (e, xhr, opt) {
    var user_token = localStorage.getItem("user_token");
    xhr.setRequestHeader("user_token", user_token);
});

 function getUserInfo(userUrl) {
    $.ajax({
        type: "get",
        url: userUrl,
        success: function (result) {
            if (result.code == 200 && result.data != null) {
                $(".left .card h3").text(result.data.userName);
                $(".left .card a").attr("href", result.data.githubUrl);
            }else{
                alert("请先登录");
                window.location.href = "blog_login.html";
            }
        },
        error: function (err) {
        }
    });
}